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java.lang.Objectorg.eclipse.persistence.jpa.jpql.model.query.AbstractStateObject
org.eclipse.persistence.jpa.jpql.model.query.SimpleStateObject
org.eclipse.persistence.jpa.jpql.model.query.DateTimeStateObject
public class DateTimeStateObject
This DateTimeStateObject represents a date or time. It supports the following identifiers:
CURRENT_DATE: This function returns the value of current date on the database server.
CURRENT_TIME: This function returns the value of current time on the database server.
CURRENT_TIMESTAMP: This function returns the value of current timestamp on the database server.
functions_returning_datetime ::= CURRENT_DATE | CURRENT_TIME | CURRENT_TIMESTAMP
The JDBC escape syntax may be used for the specification of date, time, and timestamp literals.
expression ::= {d 'yyyy-mm-dd'} | {t 'hh:mm:ss'} | {ts 'yyyy-mm-dd hh:mm:ss.f...'}
DateTime| Field Summary |
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| Fields inherited from class org.eclipse.persistence.jpa.jpql.model.query.SimpleStateObject |
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TEXT_PROPERTY |
| Constructor Summary | |
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DateTimeStateObject(StateObject parent)
Creates a new DateTimeStateObject. |
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DateTimeStateObject(StateObject parent,
java.lang.String date)
Creates a new DateTimeStateObject. |
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| Method Summary | |
|---|---|
void |
accept(StateObjectVisitor visitor)
Visits this StateObject by the given visitor. |
DateTime |
getExpression()
Returns the actual parsed object if this StateObject representation of the JPQL query
was created by parsing an existing JPQL query. |
boolean |
isCurrentDate()
Determines whether this DateTime represents the JPQL identifier
CURRENT_DATE. |
boolean |
isCurrentTime()
Determines whether this DateTime represents the JPQL identifier
CURRENT_TIME. |
boolean |
isCurrentTimestamp()
Determines whether this DateTime represents the JPQL identifier
CURRENT_TIMESTAMP. |
boolean |
isJDBCDate()
Determines whether this DateTime represents the JDBC escape syntax for date, time,
timestamp formats. |
void |
setExpression(DateTime expression)
Keeps a reference of the parsed object object, which should only be
done when this object is instantiated during the conversion of a parsed JPQL query into
StateObjects. |
| Methods inherited from class org.eclipse.persistence.jpa.jpql.model.query.SimpleStateObject |
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getText, hasText, isEquivalent, setText, setTextInternally, toTextInternal |
| Methods inherited from class org.eclipse.persistence.jpa.jpql.model.query.AbstractStateObject |
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acceptUnknownVisitor, acceptUnknownVisitor, addChildren, addProblems, addPropertyChangeListener, areEquivalent, buildProblem, buildProblem, buildStateObject, buildStateObjects, checkParent, children, decorate, equals, findIdentificationVariable, firePropertyChanged, getChangeSupport, getDeclaration, getDecorator, getGrammar, getManagedTypeProvider, getParent, getQueryBuilder, getRoot, getType, getType, getTypeHelper, getTypeRepository, hashCode, initialize, isDecorated, parent, parent, parent, removePropertyChangeListener, setExpression, setParent, toString, toString, toStringInternal, toStringItems, toText |
| Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
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public DateTimeStateObject(StateObject parent)
DateTimeStateObject.
parent - The parent of this state object, which cannot be null
java.lang.NullPointerException - The given parent cannot be nullpublic DateTimeStateObject(StateObject parent, java.lang.String date)
DateTimeStateObject.
parent - The parent of this state object, which cannot be nulldate - Either DATE, TIME, TIMESTAMP
or a JDBC date
java.lang.NullPointerException - The given parent cannot be null| Method Detail |
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public void accept(StateObjectVisitor visitor)
StateObject by the given visitor.
visitor - The visitor to visit this objectpublic DateTime getExpression()
StateObject representation of the JPQL query
was created by parsing an existing JPQL query.
getExpression in interface StateObjectgetExpression in class AbstractStateObjectStateObject
or null when the JPQL query is manually created (i.e. not from a string)public boolean isCurrentDate()
DateTime represents the JPQL identifier
CURRENT_DATE.
true if this Expression represents CURRENT_DATE; false otherwisepublic boolean isCurrentTime()
DateTime represents the JPQL identifier
CURRENT_TIME.
true if this Expression represents CURRENT_TIME; false otherwisepublic boolean isCurrentTimestamp()
DateTime represents the JPQL identifier
CURRENT_TIMESTAMP.
true if this Expression represents CURRENT_TIMESTAMP; false otherwisepublic boolean isJDBCDate()
DateTime represents the JDBC escape syntax for date, time,
timestamp formats.
true if this Expression represents a JDBC escape syntax; false otherwisepublic void setExpression(DateTime expression)
parsed object object, which should only be
done when this object is instantiated during the conversion of a parsed JPQL query into
StateObjects.
expression - The parsed object representing a date literal
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